Currently, the xvfb plugin always starts without a window manager. This causes errors/problems with the focus change in some test libraries like Fest (using the java.awt.robot).

If you start a window manager yourself between xvfb and the surefire plugin, the errors are gone.

It would be great if you would have a textfield in the global configuration of the plugin, where you can execute a program/window manager after xvfb is started. I am not sure that the display variable has to be exported for it to work.

Currently, running this before our tests and after xvfb has started prevents the errors:

export DISPLAY=:99
twm &